var Lock = (function () {
  return {
    // main function to initiate the module
    init: function () {
      $.backstretch([
		        'js/metronic/img/bg/1.jpg',
		        'js/metronic/img/bg/2.jpg',
		        'js/metronic/img/bg/3.jpg',
		        'js/metronic/img/bg/4.jpg'
		        ], {
		          fade: 1000,
		          duration: 8000
		      })
    }

  }
}())
